I've installed Drupal on a new webserver and I get the following errors:
warning: is_writable() [function.is-writable]: open_basedir restriction in effect. File(/tmp) is not within the allowed path(s): (/customers/rollergirl.ch/rollergirl.ch:/var/www/diagnostics:/usr/share/php) in /customers/rollergirl.ch/rollergirl.ch/httpd.www/drupal/sites/all/modules/imagecache/imagecache.install on line 37. ImageCache Temp Directory /tmp is not writeable by the webserver.
I guess this happen because the server is not configured with a writable tmp folder
I don't have access to Apache configuration file (I only know for sure it is Apache).
Could you suggest me what to do ? I can only contact web server service ?